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Forum Index : Microcontroller and PC projects : Great value 4.3" SSD1963 TFT displays
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 10180 |
This is the best deal I've seen on these displays. The 4.3" display has a number of advantages over the bigger ones. It is brighter and because it is lower resolution it is faster to drive. However, the biggest advantage is that the the graphics memory is big enough to hold 3 full pages of information. This means that using the paged driver capability you can write to a a range of lines that can't be seen and then only switch to those lines once the write is complete. This can completely eliminate any flicker. The driver also supports transparent text so that the background is preserved. To use this the RD line must be connected. Then text can be displayed transparently using the code "1" as the background colour. One thing missing in the demo I posted was a 10msec wait after switching the page. This is essential to allow the complete screen to refresh with the new page otherwise immediate writes to the previous page may produce flicker artifacts as the screen refreshes e.g. SSD1963 2 'switch to page 2: lines 272 to 543 pause 10 |
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| bigfix Senior Member  Joined: 20/02/2014 Location: AustriaPosts: 129 |
Does not ship to Austria or Germany - only more expensive offers... Anyhow, I bought some other displays from Eckstein in Germany via Ebay They usually have good docs about their displays to download So this display looks similar: Eckstein SSD1963 Here is the docu pointer: http://ecksteinimg.de/Datasheet/CP11007.zip |
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| davematt Regular Member  Joined: 27/09/2011 Location: AustraliaPosts: 55 |
Just received 2 of these boards. Connecting just the backlight and ground pins I can get no response. Strangely, a very similar board has the same problem. I can believe 1 or 2 faulty boards, but 3? Wondering if anyone can help, or can confirm that I should "see the light"? TIA, Dave. |
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| paceman Guru Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Dave, page 15 of Geoff's 'Micromite Plus Manual' states the following about setting up SSD9163 touch panels. This might help. Greg Most SSD1963 based LCD panels have three pairs of solder pads on the PCB which are grouped under the heading "Backlight Control". Normally the pair marked "LED-A" are shorted together with a zero ohm resistor and this allows control of the backlight's brightness with a PWM (pulse width modulated) signal on the LED-A pin of the display panel's main connector. The Micromite Plus fully supports this form of control and if you do not want to be bothered with the details you can specify the I/O pin used to drive the LED-A pin in the OPTION LCDPANEL command (below). However, it is better to use the SSD1963 controller to generate this signal as it frees up one I/O pin and it allows the brightness to be controlled with a finer degree of resolution (1% instead of 5% steps). To use the SSD1963 for brightness control the zero ohm resistor should be removed from the pair marked "LED-A" and used to short the nearby pair of solder pads marked "1963-PWM". The Micromite Plus can then control the brightness by sending commands to the SSD1963 controller. In either case the BACKLIGHT command will work the same and can be used to dynamically change the display's brightness. Generally 7 inch and larger displays have a separate pin on the connector (marked 5V) for powering the backlight from a 5V supply. If this pin is not provided the backlight power will be drawn from the 3.3V pin. Note that the power drawn by the backlight can be considerable. For example, a 7 inch display will typically draw 330mA from the 5V pin. |
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| davematt Regular Member Joined: 27/09/2011 Location: AustraliaPosts: 55 |
Many thanks Greg. You (and Geoff) have 'lightened my darkness'. D  |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10180 |
This won't work. The LED_A pin is the input to a digital switch which switches the 3.3V input to the backlight booster circuit so to get anything you need to wire 3.3V, GND and LED. The modules ship with the backlight control on "LED_A". If you move it to 1963_PWM then Geoff's BACKLIGHT control can be used |
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